function catidToClassStr(catid)
{
   switch(catid)
   {
    case "1":
    return "yule";
    break;
    case "2":
    return "canyin";
    break;
    case "3":
    return "yiliao";
    break;
    case "4":
    return "gongzi";
    break;
    case "5":
    return "jiangjin";
    break;
    case "6":
    return "tongxun";
    break;
    case "7":
    return "jiaotong";
    break;
    case "8":
    return "wuye";
    break;
    case "9":
    return "xuexi";
    break;
    case "10":
    return "qita";
    break;
    case "11":
    return "fushi";
    break;
   }
    
}